Oracle 5.0 Reference Manual page 923

Name
eight
colon
less-than-sign
greater-than-sign '>'
commercial-at
backslash
right-square-
bracket
circumflex-accent '^'
low-line
left-brace
vertical-line
right-curly-
bracket
DEL
mysql> SELECT '~' REGEXP '[[.~.]]';
mysql> SELECT '~' REGEXP '[[.tilde.]]';
•
[=character_class=]
Within a bracket expression (written using
equivalence class. It matches all characters with the same collation value, including itself. For
example, if and
o (+)
are all synonymous. An equivalence class may not be used as an endpoint of a range.
[o(+)]
•
[:character_class:]
Within a bracket expression (written using
character class that matches all characters belonging to that class. The following table lists the
standard class names. These names stand for the character classes defined in the
manual page. A particular locale may provide other class names. A character class may not be used
as an endpoint of a range.
Character Class
Name
alnum
alpha
blank
cntrl
digit
graph
lower
print
punct
space
Regular Expressions
Character
'8'
':'
'<'
'@'
'\\'
']'
'_'
'{'
'|'
'}'
177
[
are the members of an equivalence class, [[=o=]], [[=(+)=]], and
[
Meaning
Alphanumeric characters
Alphabetic characters
Whitespace characters
Control characters
Digit characters
Graphic characters
Lowercase alphabetic characters
Graphic or space characters
Punctuation characters
Space, tab, newline, and carriage return
903
Name
nine
semicolon
equals-sign
question-mark
left-square-
bracket
reverse-solidus
circumflex
underscore
grave-accent
left-curly-
bracket
right-brace
tilde
-> 1
-> 1
and ]),
[=character_class=]
and ]),
[:character_class:]
Character
'9'
';'
'='
'?'
'['
'\\'
'^'
'_'
'`'
'{'
'}'
'~'
represents an
represents a
ctype(3)